Gearing.



w. F. BOTTGER.

GEARING.

APPLICATIONHLED SPT.15. 1916.

Patented 1mg. 14,1917'.

GEG.

Specification of Letters Patent.

Patented Aug. 14, 1917.

Application led September 15, 1916. Serial No. 120,299. y

To all 'whom t may concern.'

Be it known that I, WALTER F. I SOH'GER, a citizen of the United Sta-tes, residing at Alexandria, in the county of Alexandria and State of l/virginia, have invented certain useful Improvements in Gearing, of which the following is a specification, reference being had therein to the accompanying drawing.

The present invention has reference generally to improvements in that class of invention known as machine elements, and, more particularly relates to improvements in gearing.

As the primary aim and object, it is contemplated by this invention to provide an improved gearing by which an alternating rotary movement will be procured from a continuous rotary movement, means being also employed in conjunction therewith, whereby the operator may lmanually control the transmission of movement.

It is an equally important object of Athis invention to provide novel means for slidably but non-rotatably mounting gears on the driving shaft in order that they may be effectively moved in'to and out of mesh with a gear on the driven shaft at the"` will of the operator.

Still further the invention embraces the provision of improved resilient means for normally holding the gears on the driving shaft out of mesh with the gear on the driven shaft when it is not desired to operate the driven shaft, but it is to be appreciated thatthis means will compress under pressure from the controllingor operating means when it is desired tol transmit motion from the driving shaft to thedriven shaft. Among the other aims and objects of the present invention may be recited the provision of a device of the character mentioned with a view to compactness, the number of parts of which are few, the construction simple, the cost of production low, and the eiliciency high.

Other objects as well as the nature, characteristic features and scope of my invention will appear from the following descriptiontaken in connection with the accompanying drawings and pointed out in the claims.

The invention is clearly illustrated in the accompanying drawings, in which Figure l is atop plan, partly in horizontal I section, of my invention.

F ig. 2 is a side elevation of my invention, and

for slidably and non-rotatably mounting the gears on the driving shaft.

Similar characters of reference are em-` ployed in all of the above described views to indicate corresponding parts.

Referring now, more particularly tothe drawings, I provide a supporting frame which may be and preferably is composed of side bars l and cross bars 2. Av driving shaft 3 is journaled in the side bars and rotated by a suitable source of power. Gears 4 and 5 preferably of the bevel or miter type are slidably arranged in spaced relation on the shaft, the front faces thereof being directed toward each other while squared projections 6 extend in opposite directions from the rearl faces thereof.

In order to effectively connect these gears 4 and 5 on the shaft, so that they will slide but not rotate thereon, I haveprovided my improved connecting means which in the present instance consistsv4 of a pair of similarly constructed sleeves' 7, the, outer ends of which are rigidly mounted on the` shaft 3 by suitable fasteningwdeiices 8. `\1he adjacent inner ends havetheir inner boresenlarged to provide square sockets 9 for slid- Fig. 3 is a perspective of the novel means ably receiving the squared projections 6l The sleeves are also provided with holes 10 Vwhich lead to the sockets in order that a. `lubricant may be placed therein to insure an effective operation thereof.1

A driven shaft 1l has one end journaled in one of the cross bars 2 while a bevel gear 1.2 of the miter type is carried by the outer end thereof and arranged so as to engage either of the gears 4 and 5. For the purpose of normally holding the gears 4' and 5 in spaced relation with each other and out of mesh .with the gear 12 have employed my and arranged against the rear faces of the y gears 4 and 5.

The operation of the invention may be reviewed as follows:

It will be appreciated that when eitherelement l is operated the corresponding gear 4 or 5 will be slid against the tension of the spring 13, into mesh with the gear 12 to rotate driven shaft. `When pressure is relieved from the operating element, the

-spring which has previously been compressed will expand so that the tension thereof will be exerted on the sliding gear to force the squared projection thereof within one of the sockets. rlhe other of the gears i or '5 may now be operated in a similar manner to rotate the driven shaft 11 in an opposite direction. l

Although I have shown and described the preferred embodiment of my invention I desire it to be understood that I am not to be limited to the exact details shown. However, I desire that especial emphasis be laid upon the novel means for slidably but nonrotatably mounting the gears on the driving shaft.

Among one ofits many convenient advantages my invention is adapted for use in moving'the marking arm of a corn planter from one side of the frame to the other. If employed in. this manner the driving shaft would constitute the main axle.

While I have illustrated and described a preferred embodiment yof the invention, I am aware that many modifications may be made therein by any person skilled in the art mames without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited toall the details shown, but,

What is claimed' is z- 1. A gearing including a driving shaft, a driven shaft, gears arranged on the driving shaft, means for slidably but non-rotatably connecting the gears tothe driving shaft, another gear carried by the driven shaft, operating means for moving either of the sliding 'gears into mesh with the gear on the driven shaft, and resilient means for moving either of the sliding gears out of mesh with the gear on the driven shaft when the operating means is released.

2. 'A gearing including a driving shaft, a driven shaft, a pair of gears slidably but non-rotatablv connected to the driving shaft,

a gear carried by the driven shaft, resilient means for normally holding/ the sliding gears out of mesh with. the `gear on the driven shaft, and 'means for moving either of sliding gears into mesh with the gear on the driven shaft to continuously rotate the driven shaft in one direction or to alternately rotate it in both directions.

3. A gearing including a driving shaft, a driven shaft. a pair of gears arranged on the driving shaft and having squared projections extending therefrom, sleeves carried by the driving shaft and provided with square sockets for slidably receiving the squared projections of 'the gears for consequently lslidably but non-rotatably connecting the WALTER F. BOTTGER.

Copies of this patent may be obtained for nve cents each, by addressing the Commissioner of Estense, Wahlnaten, D. di. 

